2. Summarize (simplify) these arguments and concepts concisely in the memory column, that is, the sub-column as soon as possible after class.
3. Cover the main column, use only the notes in the memory column, and describe the content in class as perfectly as possible.
4. Distinguish your lecture content, opinions and experiences from the lecture content, write them in a separate part of a card or notebook, add a title and index, make an outline and abstract, and classify them.
The notes made in class are often messy, and the review after class is not very easy to use. In order to consolidate the learning results and accumulate review materials, it is necessary to further sort out the notes and make them more systematic and organized reference materials.